brightnessctl
Utility for reading and controlling device brightness for GNU/Linux operating systems. More information: https://github.com/Hummer12007/brightnessctl.
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List devices with changeable brightness:
brightnessctl --list -
Print the current brightness of the display backlight:
brightnessctl get -
Set the brightness of the display backlight to a specified percentage within range:
brightnessctl set {{50%}} -
Increase brightness by a specified increment:
brightnessctl set {{+10%}} -
Decrease brightness by a specified decrement:
brightnessctl set {{10%-}}
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